diff options
| author | Roland McGrath <roland@redhat.com> | 2008-04-30 14:40:14 -0700 |
|---|---|---|
| committer | Tony Luck <tony.luck@intel.com> | 2008-05-01 14:29:44 -0700 |
| commit | 848376c774a941c29e4fa083d96d84a5f2190857 (patch) | |
| tree | 190ded9079f7de75018e9d89049e65b62c239151 /include/asm-ia64 | |
| parent | c0cd661b1b0ad83dac54420169ec9ca14df409e9 (diff) | |
| download | linux-848376c774a941c29e4fa083d96d84a5f2190857.tar.gz | |
[IA64] TS_RESTORE_SIGMASK
Replace TIF_RESTORE_SIGMASK with TS_RESTORE_SIGMASK and define our own set_restore_sigmask() function. This saves the costly SMP-safe set_bit operation, which we do not need for the sigmask flag since TIF_SIGPENDING always has to be set too. Signed-off-by: Roland McGrath <roland@redhat.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
Diffstat (limited to 'include/asm-ia64')
| -rw-r--r-- | include/asm-ia64/thread_info.h | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/include/asm-ia64/thread_info.h b/include/asm-ia64/thread_info.h index f30e05583869..2422ac61658a 100644 --- a/include/asm-ia64/thread_info.h +++ b/include/asm-ia64/thread_info.h @@ -108,13 +108,11 @@ extern void tsk_clear_notify_resume(struct task_struct *tsk); #define TIF_DB_DISABLED 19 /* debug trap disabled for fsyscall */ #define TIF_FREEZE 20 /* is freezing for suspend */ #define TIF_RESTORE_RSE 21 /* user RBS is newer than kernel RBS */ -#define TIF_RESTORE_SIGMASK 22 /* restore signal mask in do_signal() */ #define _TIF_SYSCALL_TRACE (1 << TIF_SYSCALL_TRACE) #define _TIF_SYSCALL_AUDIT (1 << TIF_SYSCALL_AUDIT) #define _TIF_SINGLESTEP (1 << TIF_SINGLESTEP) #define _TIF_SYSCALL_TRACEAUDIT (_TIF_SYSCALL_TRACE|_TIF_SYSCALL_AUDIT|_TIF_SINGLESTEP) -#define _TIF_RESTORE_SIGMASK (1 << TIF_RESTORE_SIGMASK) #define _TIF_NOTIFY_RESUME (1 << TIF_NOTIFY_RESUME) #define _TIF_SIGPENDING (1 << TIF_SIGPENDING) #define _TIF_NEED_RESCHED (1 << TIF_NEED_RESCHED) @@ -131,7 +129,18 @@ extern void tsk_clear_notify_resume(struct task_struct *tsk); #define TIF_WORK_MASK (TIF_ALLWORK_MASK&~(_TIF_SYSCALL_TRACE|_TIF_SYSCALL_AUDIT)) #define TS_POLLING 1 /* true if in idle loop and not sleeping */ +#define TS_RESTORE_SIGMASK 2 /* restore signal mask in do_signal() */ #define tsk_is_polling(t) (task_thread_info(t)->status & TS_POLLING) +#ifndef __ASSEMBLY__ +#define HAVE_SET_RESTORE_SIGMASK 1 +static inline void set_restore_sigmask(void) +{ + struct thread_info *ti = current_thread_info(); + ti->status |= TS_RESTORE_SIGMASK; + set_bit(TIF_SIGPENDING, &ti->flags); +} +#endif /* !__ASSEMBLY__ */ + #endif /* _ASM_IA64_THREAD_INFO_H */ |